/* ===== Custom Styles for Queen's Infusion Treatment Center ===== */

/* Base & Typography */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Gold Button */
.gold-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    background: linear-gradient(135deg, #d4a84b 0%, #e8c050 50%, #d4a84b 100%);
    background-size: 200% 200%;
    color: #0a1c0a;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 20px rgba(212, 168, 75, 0.2), 0 2px 8px rgba(212, 168, 75, 0.1);
    text-decoration: none;
    font-family: 'Montserrat', sans-serif;
}

.gold-btn:hover {
    background-position: 100% 100%;
    box-shadow: 0 8px 32px rgba(212, 168, 75, 0.3), 0 4px 12px rgba(212, 168, 75, 0.15);
    transform: translateY(-2px);
}

.gold-btn:active {
    transform: translateY(0);
}

/* Navbar */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background: rgba(4, 10, 4, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(212, 168, 75, 0.1);
}

/* Hero Orbs Animation */
@keyframes float1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes float2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-25px, 25px) scale(1.08); }
    66% { transform: translate(15px, -15px) scale(0.92); }
}

@keyframes float3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    33% { transform: translate(-48%, -52%) scale(1.03); }
    66% { transform: translate(-52%, -48%) scale(0.97); }
}

.hero-orb {
    animation: float1 12s ease-in-out infinite;
}

.orb-2 {
    animation: float2 15s ease-in-out infinite;
}

.orb-3 {
    animation: float3 18s ease-in-out infinite;
}

/* Service Cards */
.service-card {
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.4s ease;
}

.service-card:hover {
    transform: translateY(-4px);
}

/* FAQ */
.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease;
}

.faq-content.open {
    max-height: 300px;
}

.faq-icon {
    flex-shrink: 0;
}

/* Scroll Reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* Mobile Link */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.mobile-menu-open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu-open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu-open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu-open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu-open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
.mobile-menu-open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* Mobile menu button animation */
.menu-open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

.menu-open .menu-line:nth-child(2) {
    opacity: 0;
}

.menu-open .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 24px;
}

/* Selection color */
::selection {
    background: rgba(212, 168, 75, 0.3);
    color: #faf8f4;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #040a04;
}

::-webkit-scrollbar-thumb {
    background: rgba(212, 168, 75, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(212, 168, 75, 0.5);
}